in 2021.3/CS10/InterpolatedStringHandler/InterpolatedStringHandlers.cs [52:64]
public CustomInterpolatedStringHandler(int literalLength, int formattedCount, out bool shouldAppend)
{
if (IsEnabled) // logging is enabled
{
this._builder = new StringBuilder(capacity: literalLength + formattedCount * 11);
shouldAppend = true;
}
else
{
this._builder = null;
shouldAppend = false;
}
}